In 1947 Arnett Leslie, president and general manager of Leslie Paper Company, succeeded Von Kuster, who left him a full membership and long waiting list. The finest new kitchen equipment was installed, and Musak came to be heard through the clubhouse. During Leslie’s tenure, the Northwestern Bank weatherball, said to be the tallest bank sign in the world, was added to the downtown scene.

Earl Maul, publisher of Finance and Commerce Daily Newspaper and a handball singles and doubles champion of the 1920s, became the 15th MAC president. In September 1950 he and the Board of Directors expended $78,000 to install state-of-the-art bowling lanes with automatic pinsetters. The word alleys was no longer to be used.

Willis Salisbury, president of Salisbury & Satterlee Mattress Company and Maul’s successor, installed new elevators at the cost of over $138,000. Ed Thode, vice-president, secretary and general counsel for General Mills, succeeded Salisbury, and in 1955, near the end of his term, announced a huge remodeling and building program called Operation Up-Date. The plan called for a new cocktail lounge on the 14th floor, rebuilding the main dining room and front entrance, modernizing the main lobby, air-conditioning the entire building, removing the front cornices and much more. Ed Thode named the cocktail lounge the Top of the MAC.

Leonard Ramberg, postmaster of Minneapolis in 1956 and later vice-president of the Northwestern National Bank, was the next president working on Operation Up-Date. He was followed by Harlan Strong of the law firm, Strong, Strong and Tully. The remodeled dining room, finished in August 1958, was renamed the Century Dining Room in honor of Minnesota’s 100th birthday. On September 21, 1958, the Top of the MAC was opened. President Strong stated that the cost of remodeling the 13th and 14th floors was $207,000 for construction and $64,906 for furnishings.